227 lines
7.6 KiB
PHP
227 lines
7.6 KiB
PHP
<?php
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namespace app\api\model;
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use app\common\library\helper;
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use app\common\model\UserCoupon as UserCouponModel;
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/**
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* 用户优惠券模型
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* Class UserCoupon
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* @package app\api\model
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*/
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class UserCoupon extends UserCouponModel
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{
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/**
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* 获取用户优惠券列表
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* @param $userId
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* @param bool $isUse 是否已使用
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* @param bool $isExpire 是否已过期
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* @param float $amount 订单消费金额
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* @return false|\PDOStatement|string|\think\Collection
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* @throws \think\db\exception\DataNotFoundException
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* @throws \think\db\exception\ModelNotFoundException
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* @throws \think\exception\DbException
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*/
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public function getList($userId, $isUse = false, $isExpire = false, $amount = null)
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{
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// 构建查询对象
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$query = $this->where('user_id', '=', $userId)
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->where('is_use', '=', $isUse)
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->where('is_expire', '=', $isExpire);
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// 最低消费金额
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if (!is_null($amount) && $amount > 0) {
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$query->where('min_price', '<=', $amount);
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}
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return $query->select();
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}
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/**
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* 获取用户优惠券总数量(可用)
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* @param $user_id
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* @return int|string
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* @throws \think\Exception
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*/
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public function getCount($user_id)
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{
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return $this->where('user_id', '=', $user_id)
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->where('is_use', '=', 0)
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->where('is_expire', '=', 0)
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->count();
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}
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/**
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* 获取用户优惠券ID集
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* @param $user_id
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* @return array
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*/
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public function getUserCouponIds($user_id)
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{
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return $this->where('user_id', '=', $user_id)->column('coupon_id');
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}
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/**
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* 领取优惠券
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* @param $user
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* @param $coupon_id
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* @return bool|false|int
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* @throws \think\exception\DbException
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*/
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public function receive($user, $coupon_id)
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{
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// 获取优惠券信息
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$coupon = Coupon::detail($coupon_id);
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// 验证优惠券是否可领取
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if (!$this->checkReceive($user, $coupon)) {
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return false;
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}
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// 添加领取记录
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return $this->add($user, $coupon);
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}
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/**
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* 添加领取记录
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* @param $user
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* @param Coupon $coupon
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* @return bool
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*/
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private function add($user, $coupon)
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{
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// 计算有效期
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if ($coupon['expire_type'] == 10) {
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$start_time = time();
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$end_time = $start_time + ($coupon['expire_day'] * 86400);
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} else {
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$start_time = $coupon['start_time']['value'];
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$end_time = $coupon['end_time']['value'];
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}
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// 整理领取记录
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$data = [
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'coupon_id' => $coupon['coupon_id'],
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'name' => $coupon['name'],
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'color' => $coupon['color']['value'],
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'coupon_type' => $coupon['coupon_type']['value'],
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'reduce_price' => $coupon['reduce_price'],
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'discount' => $coupon->getData('discount'),
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'min_price' => $coupon['min_price'],
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'expire_type' => $coupon['expire_type'],
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'expire_day' => $coupon['expire_day'],
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'start_time' => $start_time,
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'end_time' => $end_time,
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'apply_range' => $coupon['apply_range'],
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'apply_range_config' => $coupon['apply_range_config'],
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'user_id' => $user['user_id'],
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'wxapp_id' => self::$wxapp_id
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];
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return $this->transaction(function () use ($data, $coupon) {
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// 添加领取记录
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$status = $this->save($data);
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if ($status) {
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// 更新优惠券领取数量
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$coupon->setIncReceiveNum();
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}
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return $status;
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});
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}
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/**
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* 验证优惠券是否可领取
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* @param $user
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* @param Coupon $coupon
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* @return bool
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*/
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private function checkReceive($user, $coupon)
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{
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if (!$coupon) {
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$this->error = '优惠券不存在';
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return false;
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}
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if (!$coupon->checkReceive()) {
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$this->error = $coupon->getError();
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return false;
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}
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// 验证是否已领取
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$userCouponIds = $this->getUserCouponIds($user['user_id']);
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if (in_array($coupon['coupon_id'], $userCouponIds)) {
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$this->error = '该优惠券已领取';
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return false;
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}
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return true;
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}
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/**
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* 订单结算优惠券列表
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* @param int $userId 用户id
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* @param double $orderPayPrice 订单商品总金额
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* @return mixed
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* @throws \think\db\exception\DataNotFoundException
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* @throws \think\db\exception\ModelNotFoundException
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* @throws \think\exception\DbException
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*/
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public static function getUserCouponList($userId, $orderPayPrice)
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{
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// 获取用户可用的优惠券列表
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$list = (new static)->getList($userId, false, false, $orderPayPrice);
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$data = [];
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foreach ($list as $coupon) {
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// 最低消费金额
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// if ($orderPayPrice < $coupon['min_price']) continue;
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// 有效期范围内
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if ($coupon['start_time']['value'] > time()) continue;
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$key = $coupon['user_coupon_id'];
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$data[$key] = [
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'user_coupon_id' => $coupon['user_coupon_id'],
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'name' => $coupon['name'],
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'color' => $coupon['color'],
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'coupon_type' => $coupon['coupon_type'],
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'reduce_price' => $coupon['reduce_price'],
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'discount' => $coupon['discount'],
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'min_price' => $coupon['min_price'],
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'expire_type' => $coupon['expire_type'],
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'start_time' => $coupon['start_time'],
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'end_time' => $coupon['end_time'],
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'apply_range' => $coupon['apply_range'],
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'apply_range_config' => $coupon['apply_range_config']
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];
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// 计算打折金额
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if ($coupon['coupon_type']['value'] == 20) {
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$reducePrice = helper::bcmul($orderPayPrice, $coupon['discount'] / 10);
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$data[$key]['reduced_price'] = bcsub($orderPayPrice, $reducePrice, 2);
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} else
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$data[$key]['reduced_price'] = $coupon['reduce_price'];
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}
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// 根据折扣金额排序并返回
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return array_sort($data, 'reduced_price', true);
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}
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/**
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* 判断当前优惠券是否满足订单使用条件
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* @param $couponList
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* @param $orderGoodsIds
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* @return mixed
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*/
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public static function couponListApplyRange($couponList, $orderGoodsIds)
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{
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// 名词解释(is_apply)：允许用于抵扣当前订单
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foreach ($couponList as &$item) {
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if ($item['apply_range'] == 10) {
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// 1. 全部商品
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$item['is_apply'] = true;
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} elseif ($item['apply_range'] == 20) {
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// 2. 指定商品, 判断订单商品是否存在可用
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$applyGoodsIds = array_intersect($item['apply_range_config']['applyGoodsIds'], $orderGoodsIds);
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$item['is_apply'] = !empty($applyGoodsIds);
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} elseif ($item['apply_range'] == 30) {
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// 2. 排除商品, 判断订单商品是否全部都在排除行列
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$excludedGoodsIds = array_intersect($item['apply_range_config']['excludedGoodsIds'], $orderGoodsIds);
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$item['is_apply'] = count($excludedGoodsIds) != count($orderGoodsIds);
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}
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!$item['is_apply'] && $item['not_apply_info'] = '该优惠券不支持当前商品';
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}
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return $couponList;
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}
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}
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